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Cheap flights from Incheon Intl Airport to Illinois from $315

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Incheon Intl Airport to Illinois departing on 2/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Incheon Intl Airport to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Hawaiian Airlines Logo
8:35 pm - 11:50 pm
ICN
-
ORD
18h 15m1 stop
Hawaiian Airlines Logo
8:00 am - 6:35 pm
ORD
-
ICN
19h 35m1 stop
$543Hawaiian Airlines
Fri, Jan 30 - Fri, Feb 6
Hawaiian Airlines Logo
8:35 pm - 2:38 pm
ICN
-
ORD
33h 03m1 stop
Hawaiian Airlines Logo
6:06 pm - 6:35 pm
ORD
-
ICN
33h 29m1 stop
$555Hawaiian Airlines
Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
8:35 pm - 11:50 pm
ICN
-
ORD
18h 15m1 stop
Multiple Airlines Logo
8:00 am - 6:35 pm
ORD
-
ICN
19h 35m1 stop
$560Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
8:35 pm - 2:11 pm
ICN
-
ORD
32h 36m1 stop
Multiple Airlines Logo
5:29 pm - 6:35 pm
ORD
-
ICN
34h 06m1 stop
$577Multiple Airlines
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
4:50 pm - 9:28 am
ICN
-
STL
30h 38m2 stops
United Airlines Logo
6:02 pm - 4:20 am
STL
-
ICN
20h 18m2 stops
$675United Airlines
Mon, Apr 13 - Fri, Apr 24
United Airlines Logo
12:45 pm - 3:37 pm
ICN
-
STL
17h 52m1 stop
United Airlines Logo
3:11 pm - 5:40 am
STL
-
ICN
23h 29m2 stops
$712United Airlines
Sat, Jan 31 - Tue, Feb 3
Delta Logo
7:40 pm - 1:07 pm
ICN
-
MDW
31h 27m1 stop
Delta Logo
9:20 am - 5:20 pm
MDW
-
ICN
18h 00m1 stop
$1,176Delta
Tue, Jun 2 - Tue, Jun 30
Delta Logo
7:00 pm - 8:46 am
ICN
-
MDW
27h 46m2 stops
Delta Logo
9:20 am - 5:20 pm
MDW
-
ICN
18h 00m1 stop
$1,179Delta
Fri, Apr 10 - Mon, Apr 20
Korean Air Logo
10:15 am - 12:30 pm
ICN
-
MDW
16h 15m1 stop
Korean Air Logo
9:20 am - 5:20 pm
MDW
-
ICN
18h 00m1 stop
$1,292Korean Air
Tue, Apr 21 - Thu, Apr 23
Korean Air Logo
10:15 am - 12:30 pm
ICN
-
MDW
16h 15m1 stop
Korean Air Logo
9:20 am - 5:20 pm
MDW
-
ICN
18h 00m1 stop
$1,295Korean Air
Wed, Apr 15 - Thu, May 7

American Airlines flights from Incheon Intl Airport to Illinois

Our best American Airlines deals on Incheon Intl Airport to Illinois flight tickets
American Airlines
Apr 21
ICN5:25 pmIncheon Intl
30h 02m
1 stop
ORD9:27 amChicago O'Hare Intl
Apr 23
ORD5:00 amChicago O'Hare Intl
20h 30m
1 stop
ICN3:30 pmIncheon Intl
$564
Find similar
American Airlines
Apr 21
ICN5:25 pmIncheon Intl
30h 02m
1 stop
ORD9:27 amChicago O'Hare Intl
Apr 23
ORD6:00 amChicago O'Hare Intl
19h 30m
1 stop
ICN3:30 pmIncheon Intl
$565
Find similar
American Airlines
Apr 9
ICN5:25 pmIncheon Intl
27h 45m
2 stops
ORD7:10 amChicago O'Hare Intl
Apr 24
ORD5:00 amChicago O'Hare Intl
20h 30m
1 stop
ICN3:30 pmIncheon Intl
$566
Find similar

Hawaiian Airlines flights from Incheon Intl Airport to Illinois

Our best Hawaiian Airlines deals on Incheon Intl Airport to Illinois flight tickets
Hawaiian Airlines
Jan 30
ICN8:35 pmIncheon Intl
18h 15m
1 stop
ORD11:50 pmChicago O'Hare Intl
Feb 6
ORD8:00 amChicago O'Hare Intl
19h 35m
1 stop
ICN6:35 pmIncheon Intl
$543
Find similar
Hawaiian Airlines
Jan 30
ICN8:35 pmIncheon Intl
33h 03m
1 stop
ORD2:38 pmChicago O'Hare Intl
Feb 6
ORD6:06 pmChicago O'Hare Intl
33h 29m
1 stop
ICN6:35 pmIncheon Intl
$555
Find similar
Hawaiian Airlines
Jan 29
ICN8:35 pmIncheon Intl
18h 15m
1 stop
ORD11:50 pmChicago O'Hare Intl
Feb 5
ORD8:00 amChicago O'Hare Intl
19h 35m
1 stop
ICN6:35 pmIncheon Intl
$561
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Incheon Intl Airport to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Fri 1/30

8:35 pm-11:50 pm

1 stop18h 15m

Chicago O'Hare Intl

Fri 2/6

8:00 am-6:35 pm

1 stop19h 35m

$543

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Fri 1/30

8:35 pm-2:38 pm

1 stop33h 03m

Chicago O'Hare Intl

Fri 2/6

6:06 pm-6:35 pm

1 stop33h 29m

$555

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Fri 1/30

8:35 pm-11:50 pm

1 stop18h 15m

Chicago O'Hare Intl

Fri 2/6

8:00 am-6:35 pm

1 stop19h 35m

$560

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Fri 2/20

8:35 pm-2:11 pm

1 stop32h 36m

Chicago O'Hare Intl

Fri 2/27

5:29 pm-6:35 pm

1 stop34h 06m

$577

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 4/13

4:50 pm-9:28 am

2 stops30h 38m

Lambert-St Louis

Fri 4/24

6:02 pm-4:20 am

2 stops20h 18m

$675

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Sat 1/31

12:45 pm-3:37 pm

1 stop17h 52m

Lambert-St Louis

Tue 2/3

3:11 pm-5:40 am

2 stops23h 29m

$712

IncheonChicago

ICN - MDW

ICNMDW

Incheon Intl

Tue 6/2

7:40 pm-1:07 pm

1 stop31h 27m

Chicago Midway

Tue 6/30

9:20 am-5:20 pm

1 stop18h 00m

$1,176

IncheonChicago

ICN - MDW

ICNMDW

Incheon Intl

Fri 4/10

7:00 pm-8:46 am

2 stops27h 46m

Chicago Midway

Mon 4/20

9:20 am-5:20 pm

1 stop18h 00m

$1,179

IncheonChicago

ICN - MDW

ICNMDW

Incheon Intl

Tue 4/21

10:15 am-12:30 pm

1 stop16h 15m

Chicago Midway

Thu 4/23

9:20 am-5:20 pm

1 stop18h 00m

$1,292

IncheonChicago

ICN - MDW

ICNMDW

Incheon Intl

Wed 4/15

10:15 am-12:30 pm

1 stop16h 15m

Chicago Midway

Thu 5/7

9:20 am-5:20 pm

1 stop18h 00m

$1,295

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Incheon Intl Airport to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Incheon Intl Airport is in December. Flight prices, which tend to average around $753, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of December, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $898.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Incheon Intl Airport to Illinois is on a Monday when prices can be found for as low as $1,356. Flights from Incheon Intl Airport to Illinois on a Wednesday will generally be more expensive and average around $1,536. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Incheon Intl Airport to Illinois during this time can be as low as $1,098. Flights in the evening are often more expensive with an average ticket price of $1,995.

What is the cheapest Incheon Intl to Illinois flight route?

Fly from Incheon Intl to Chicago O'Hare Intl for the best Incheon Intl - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,220 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Incheon Intl Airport for as low as $815 on momondo.

What cabin class options are available on Incheon Intl to Illinois flights?

There are 4 cabin classes available to choose from on Incheon Intl to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Incheon Intl Airport to Illinois flights?

No. A direct flight is the cheapest option for a flight between Incheon Intl Airport to Illinois.

Cheap Incheon Intl Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Incheon Intl Airport to Illinois

Best Price Found

$1,123

Fastest flight time

12h 50m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Incheon Intl Airport in the past 72 hours is $1,123. The best round-trip flight deal from Incheon Intl Airport to Illinois found on momondo in the last 72 hours is $1,320.
The fastest flight from Incheon Intl Airport to Illinois takes 12h 50m
Direct flights go from Incheon Intl Airport to Illinois every day.
There are 98 airports in Illinois. From Incheon Intl Airport there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

  • When did momondo last update prices for flights from Incheon Intl Airport to Illinois?

    Prices for flights from Incheon Intl Airport to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Incheon Intl Airport to Illinois?

  • How old do you have to be to fly from Incheon Intl Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Incheon Intl Airport to Illinois?

Best airlines flying from Incheon Intl Airport to Illinois

Compare and see reviews for airlines that fly from Incheon Intl Airport to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $197Free CancellationRating
8.0
11,477 reviews
Search Alaska Airlines flights
DeltaPriceFrom $229Free CancellationRating
7.9
8,005 reviews
Search Delta flights
Asiana AirlinesPriceFrom $558Free CancellationRating
8.2
493 reviews
Search Asiana Airlines flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
Korean AirPriceFrom $687Free CancellationRating
8.4
1,186 reviews
Search Korean Air flights
Air CanadaPriceFrom $730Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seoul to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Seoul which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seoul to Illinois?

Once all potential Seoul to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seoul to Illinois right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Illinois from Seoul. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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